SKU: 55938029545

Mr. Gasket Ultra-Seal Header Gaskets - 5920

Sale price$50.62 Regular price$56.25
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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28

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Description

Mr. Gasket Ultra-Seal Header Gaskets - 5920Overview: Manufactured from high temperature steel core graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp

Overview:

Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.

Features:

    Application:

    Year Make Model Submodel Engine Size
    1971 - 1976 Pontiac Bonneville 455/7.5 V8
    1967 - 1974 Pontiac Bonneville 400/6.6 V8
    1965 - 1969 Pontiac Catalina
    1967 Pontiac Catalina 428/7 V8
    1970 - 1974 Pontiac Catalina 400/6.6 V8
    1970 - 1976 Pontiac Catalina 455/7.5 V8
    1965 - 1970 Pontiac Bonneville
    1970 - 1976 Pontiac Catalina 350/5.7 V8
    1971 - 1976 Pontiac Firebird 455/7.5 V8
    1968 - 1976 Pontiac Firebird 350/5.7 V8
    1973 - 1975 Pontiac Grand Am 350/5.7 V8
    1973 - 1975 Pontiac Grand Am 455/7.5 V8
    1975 - 1976 Pontiac Grand LeMans 350/5.7 V8
    1975 - 1976 Pontiac Grand LeMans 455/7.5 V8
    1976 Pontiac Grand Prix 350/5.7 V8
    1971 - 1976 Pontiac Grand Prix 455/7.5 V8
    1968 - 1976 Pontiac LeMans 350/5.7 V8
    1970 - 1976 Pontiac LeMans 455/7.5 V8
    1971 - 1976 Pontiac Grand Safari 455/7.5 V8
    1972 - 1975 Pontiac Grandville 455/7.5 V8
    1972 - 1976 Pontiac Ventura 350/5.7 V8
    1966 Pontiac Bonneville 389/6.4 V8
    1967 Pontiac Bonneville 428/7 V8
    1968 - 1974 Pontiac Firebird 400/6.6 V8
    1967 Pontiac Firebird 326/5.3 V8
    1973 - 1974 Pontiac Grand Am 400/6.6 V8
    1967 - 1974 Pontiac Grand Prix 400/6.6 V8
    1965 - 1970 Pontiac Grand Prix
    1971 - 1974 Pontiac Grand Safari 400/6.6 V8
    1971 Pontiac Grandville
    1973 Pontiac Grandville 400/6.6 V8
    1965 - 1970 Pontiac GTO
    1966 Pontiac Grand Prix 389/6.4 V8
    1967 Pontiac Grand Prix 428/7 V8
    1971 - 1973 Pontiac GTO 400/6.6 V8
    1971 - 1973 Pontiac GTO 455/7.5 V8
    1968 - 1974 Pontiac LeMans 400/6.6 V8
    1965 - 1967 Pontiac LeMans 326/5.3 V8
    1965 Pontiac Star Chief
    1966 Pontiac Star Chief 389/6.4 V8
    1965 - 1967 Pontiac Tempest 326/5.3 V8
    1968 - 1970 Pontiac Executive 400/6.6 V8
    1968 - 1970 Pontiac Tempest 350/5.7 V8
    1967 Pontiac Executive
    1968 - 1969 Pontiac Executive 428/7 V8
    1968 - 1970 Pontiac Tempest 400/6.6 V8
    1970 Pontiac Executive 455/7.5 V8

    Specs:

    Brand Mr. Gasket
    Collector Gaskets Included No
    Emission Code 5
    Engine Pontiac V8
    Gasket Line Ultra-Seal
    Material Ultra-seal
    Port Shape Oval
    Port Size 1.46" x 1.93"
    Product Type Header Gaskets
    Thickness .062"
    Warning California Proposition 65
    Warranty Limited 90 Day Warranty
    Weight 0.38
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 55938029545

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    4.5 ★★★★★
    Based on 20 reviews
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    Product Reviews
    D
    Verified Purchase
    Dakota's
    San Leandro, US
    ★★★★★ 1
    Not worth the time
    Color: Light Brown, Size: 4
    Plastic pieces for the dry wall broke and also created an even bigger hole in the wall. One of the shelves wouldn’t even stay level despite following all instructions. Wood gives you splinters as well since it’s not sanded down.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026
    M
    Verified Purchase
    Miah
    Belleville, US
    ★★★★★ 5
    Solid Floating Shelves 🛠️🏠
    Color: Black, Number Of Shelves: 4, Size: 15.7in
    I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome. The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings. One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐 These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 4, 2026
    T
    Verified Purchase
    Tyler Kline
    Waukegan, US
    ★★★★★ 5
    Good looking shelves and easy install - skip the included drywall anchors
    Color: Black, Number Of Shelves: 2, Size: 22in
    I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room. Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project. One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely. The rest of the hardware worked fine and once installed the shelves feel solid and hold items well. Pros - Clean modern look - Easy installation - Feels solid once mounted - Good size for books or decor Cons - The small level included isn’t very accurate — use your own level - One of the metal brackets was slightly bent out of the box but straightened out easily Helpful tip: Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely. Final thoughts: For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 13, 2026
    C
    Verified Purchase
    Coffman, H
    Draper, US
    ★★★★★ 5
    Cheap, and effective!
    Color: Black, Number Of Shelves: 4, Size: 15.7in
    Looks good, works great, low cost. I'll be purchasing more in the future.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 12, 2026
    A
    Verified Purchase
    Amazon Customer
    Lexington, US
    ★★★★★ 4
    Cute for coffee bar!
    Color: Black, Number Of Shelves: 4, Size: 15.7in
    Great for above my coffee bar. Easy to mount and align. Seems stable!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 14, 2026

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